Charger assembly and charging system for an electronic vaping device

ABSTRACT

A charger assembly is configured to charge the electronic vaping device. The charger assembly includes a base including a housing defining a port. The port is configured to receive a tip end of an electronic vaping device. The port includes a magnetic electrical contact centrally positioned at a bottom of the port and a first pin positioned at the bottom of the port. The charger assembly also includes a microprocessor electrically connected to the magnetic electrical contact and the first pin.

CROSS-REFERENCE TO RELATED APPLICATIONS

This non-provisional patent application is a Continuation of U.S.application Ser. No. 15/190,584, filed on Jun. 23, 2016, which claimspriority under 35 U.S.C. § 119(e) to provisional U.S. application No.62/184,559 filed on Jun. 25, 2015 in the United States Patent andTrademark Office, the entire contents of each of which are incorporatedherein by reference.

BACKGROUND Field

The present disclosure relates to a charger assembly and charging systemfor an electronic vaping or e-vaping device.

Description of Related Art

An e-vaping device includes a heater element which vaporizes a pre-vaporformulation to produce a “vapor.” The e-vaping device includes a powersupply, such as a battery, arranged in the device. The battery can berechargeable. A charging device may recharge the battery of the e-vapingdevice.

SUMMARY

At least one example embodiment relates to a charger assembly configuredto charge an electronic vaping device.

In an example embodiment, a charger assembly is configured to charge theelectronic vaping device. The charger assembly includes a base includinga housing defining a port. The port is configured to receive a tip endof an electronic vaping device. The port includes a magnetic electricalcontact positioned at a bottom of the port and a first pin positioned atthe bottom of the port. The charger assembly also includes amicroprocessor electrically connected to the magnetic electrical contactand the first pin. The charger assembly may also include a second pinpositioned at the bottom of the port.

In some example embodiments, the magnetic electrical contact iscentrally positioned at the bottom of the port and the first pin and thesecond pin may be positioned peripheral to the magnetic electricalcontact.

In at least one example embodiment, the port is generally triangular incross-section and the base of the charger assembly is generallytriangular in cross-section. The triangular cross-section of the porthas a central port vertex and the triangular cross-section of the basehas a central base vertex. The central port vertex is opposite from thecentral base vertex.

In some example embodiments, a bottom wall of the port is angled withrespect to a longitudinal axis of the base and the central port vertexis at a highest point of the port. The base may also include arechargeable power source configured to charge a battery of anelectronic vaping device. In some example embodiments, the base mayinclude a plastic outer shell.

In at least one example embodiment, a charging system for an electronicvaping device is provided. The charging system includes an electronicvaping device and a charger assembly. The charger assembly is configuredto charge the electronic vaping device. The charger assembly includes abase including a housing defining a port. The port is configured toreceive a tip end of an electronic vaping device. The port includes amagnetic electrical contact positioned at a bottom of the port. Themagnetic electrical contact is configured to form a first electricalconnection with the electronic vaping device. The port also includes afirst pin positioned at the bottom of the port. The first pin isconfigured to form a second electrical connection with the electronicvaping device. The base also includes a microprocessor electricallyconnected to the magnetic electrical contact and the first pin. Thecharger assembly may include a second pin positioned at the bottom ofthe port.

In some example embodiments, the magnetic electrical contact iscentrally positioned at the bottom of the port and the first pin and thesecond pin may be positioned peripheral to the magnetic electricalcontact.

In some example embodiments, the first pin and the second pin areconfigured to be depressed upon insertion of the electronic vapingdevice in the port. The electronic vaping device includes a firstelectrical contact and a second electrical contact. The first electricalcontact is centrally located on the tip end of the electronic vapingdevice. In at least one example embodiment, the first electrical contactis magnetic and the first electrical contact is configured toelectrically connect with the magnetic electrical contact.

In some example embodiments, the second electrical contact is located onan outer edge of the tip end. The second electrical contact extendssubstantially about one of a circumference and a perimeter of the outeredge of the tip end. An insulating insert is positioned between thefirst electrical contact and the second electrical contact.

In at least one example embodiment, the tip end has a generallytriangular cross-section. The port is generally triangular incross-section and the base of the charger assembly is generallytriangular in cross-section. In some example embodiments, the triangularcross-section of the port has a central port vertex and the triangularcross-section of the base has a central base vertex. The central portvertex may be opposite from the central base vertex. The port is angledwith respect to a longitudinal axis of the base and the central portvertex is at a highest point of the port.

In some example embodiments, the base may also include a rechargeablepower source configured to charge a battery of the electronic vapingdevice.

In at least one example embodiment, a charger assembly is provided. Thecharger assembly includes a base plate and a housing mated with the baseplate. The housing has a top wall and at least one side wall. Thehousing has a generally triangular cross-section. The housing and thebase plate define a chamber. A port may be defined by a bottom wall andat least one port side wall. The port extends from the top wall of thehousing into the chamber. The bottom wall extends into the chamber at anangle. A central, magnetic electrical contact extends through the bottomwall of the port. A first pin extends through the bottom wall of theport. The charger assembly may also include a microprocessorelectrically connected to the central, magnetic electrical contact andthe first pin. In some example embodiments, the housing is generallyfrusto-pyramidal in shape.

BRIEF DESCRIPTION OF THE DRAWINGS

The various features and advantages of the non-limiting embodimentsherein may become more apparent upon review of the detailed descriptionin conjunction with the accompanying drawings. The accompanying drawingsare merely provided for illustrative purposes and should not beinterpreted to limit the scope of the claims. The accompanying drawingsare not to be considered as drawn to scale unless explicitly noted. Forpurposes of clarity, various dimensions of the drawings may have beenexaggerated.

FIG. 1 is top view of a charger assembly according to an exampleembodiment.

FIG. 2 is a back view of a charger assembly according to an exampleembodiment.

FIG. 3 is a cross-sectional view along line III-III of the chargerassembly of FIG. 2.

FIG. 4 is a perspective view of an electronic vaping device according toat least one example embodiment.

FIG. 5 is a planar view of a tip end of an electronic vaping deviceaccording to at least one example embodiment.

FIG. 6 is a perspective view of a second section of an electronic vapingdevice drawn with a transparent housing according to at least oneexample embodiment.

FIG. 7 is a cross-sectional view of an electronic vaping device alongline VII-VII of FIG. 5 according to an example embodiment.

DETAILED DESCRIPTION OF EXAMPLE EMBODIMENTS

Some detailed example embodiments are disclosed herein. However,specific structural and functional details disclosed herein are merelyrepresentative for purposes of describing example embodiments. Exampleembodiments may, however, be embodied in many alternate forms and shouldnot be construed as limited to only the example embodiments set forthherein.

Accordingly, while example embodiments are capable of variousmodifications and alternative forms, example embodiments thereof areshown by way of example in the drawings and will herein be described indetail. It should be understood, however, that there is no intent tolimit example embodiments to the particular forms disclosed, but to thecontrary, example embodiments are to cover all modifications,equivalents, and alternatives falling within the scope of exampleembodiments. Like numbers refer to like elements throughout thedescription of the figures.

It should be understood that when an element or layer is referred to asbeing “on,” “connected to,” “coupled to,” or “covering” another elementor layer, it may be directly on, connected to, coupled to, or coveringthe other element or layer or intervening elements or layers may bepresent. In contrast, when an element is referred to as being “directlyon,” “directly connected to,” or “directly coupled to” another elementor layer, there are no intervening elements or layers present. Likenumbers refer to like elements throughout the specification. As usedherein, the term “and/or” includes any and all combinations of one ormore of the associated listed items.

It should be understood that, although the terms first, second, third,etc. may be used herein to describe various elements, components,regions, layers and/or sections, these elements, components, regions,layers, and/or sections should not be limited by these terms. Theseterms are only used to distinguish one element, component, region,layer, or section from another region, layer, or section. Thus, a firstelement, component, region, layer, or section discussed below could betermed a second element, component, region, layer, or section withoutdeparting from the teachings of example embodiments.

Spatially relative terms (e.g., “beneath,” “below,” “lower,” “above,”“upper,” and the like) may be used herein for ease of description todescribe one element or feature's relationship to another element(s) orfeature(s) as illustrated in the figures. It should be understood thatthe spatially relative terms are intended to encompass differentorientations of the device in use or operation in addition to theorientation depicted in the figures. For example, if the device in thefigures is turned over, elements described as “below” or “beneath” otherelements or features would then be oriented “above” the other elementsor features. Thus, the term “below” may encompass both an orientation ofabove and below. The device may be otherwise oriented (rotated 90degrees or at other orientations) and the spatially relative descriptorsused herein interpreted accordingly.

The terminology used herein is for the purpose of describing variousexample embodiments only and is not intended to be limiting of exampleembodiments. As used herein, the singular forms “a,” “an,” and “the” areintended to include the plural forms as well, unless the context clearlyindicates otherwise. It will be further understood that the terms“includes,” “including,” “comprises,” and/or “comprising,” when used inthis specification, specify the presence of stated features, integers,steps, operations, elements, and/or components, but do not preclude thepresence or addition of one or more other features, integers, steps,operations, elements, components, and/or groups thereof.

Example embodiments are described herein with reference tocross-sectional illustrations that are schematic illustrations ofidealized embodiments (and intermediate structures) of exampleembodiments. As such, variations from the shapes of the illustrations asa result, for example, of manufacturing techniques and/or tolerances,are to be expected. Thus, example embodiments should not be construed aslimited to the shapes of regions illustrated herein but are to includedeviations in shapes that result, for example, from manufacturing.

Unless otherwise defined, all terms (including technical and scientificterms) used herein have the same meaning as commonly understood by oneof ordinary skill in the art to which example embodiments belong. Itwill be further understood that terms, including those defined incommonly used dictionaries, should be interpreted as having a meaningthat is consistent with their meaning in the context of the relevant artand will not be interpreted in an idealized or overly formal senseunless expressly so defined herein.

Referring to FIGS. 1-3, a charger assembly 10 is configured to charge ane-vaping device 30 (shown in FIGS. 4-7). The charger assembly 10includes a base 12. The base 12 includes a housing 53 that can be formedfrom one or more pieces of a material, such as a plastic or a metal. Thehousing 53 can include a top wall 50 and at least one side wall 52 thatdefine an inner chamber 60 (shown in FIG. 3). The top wall 50 may beangled downwardly with respect to longitudinal axis of the housing 53.In some example embodiments, the housing 53 may be frusto-pyramidal inshape.

In some example embodiments, the base 12 can have a generally triangularcross-section with a central base vertex 91. The top wall 50 of thehousing 53 angles downwardly towards the central base vertex 91.

In at least one example embodiment, a port 20 is formed in the top wall50 of the housing 53. The port 20 is defined by a bottom wall 24 and atleast one side wall 64. In an example embodiment, the port 20 has agenerally triangular cross-section with a central port vertex 92. Thebottom wall 24 is angled downwardly with respect to the longitudinalaxis of the base 12, such that the central port vertex 92 is at ahighest point of the bottom wall 24. In at least one example embodiment,the central port vertex 92 is opposite from the central base vertex 91.In some example embodiments, the bottom wall 24 is more steeply angledwith relation to the longitudinal axis of the base 12 than the top wall50 of the housing 53.

As shown in FIG. 2, in at least one example embodiment, a powerconnection port 22 is included in the base 12. The power connection port22 can be a mini-USB port, a USB port, or any other suitable type ofconnection. The charger assembly 10 can be connected to a power sourcevia the power connection port 22 to allow charging of an e-vaping deviceconnected to the charger assembly 10 and/or to allow charging a batterycontained in the charger assembly 10, if included.

FIG. 3 is a cross-sectional view of the charger assembly 10 along lineIII-III of FIG. 2 of an example embodiment. As shown, the base 12includes the housing 53 mated with a base plate 100. Optionally, arubber plate 102 can underlie the base plate 100 so as to mitigatescuffing and/or damaging of surfaces on which the charger assembly 10 isplaced.

In at least one example embodiment, a microprocessor 90 may overlie thebase plate 100 and is electrically connected to a magnetic contact 14, afirst pin 16, and a second pin 18 (see FIG. 1). The microprocessor 90 isconfigured to initiate a charging cycle.

In some example embodiments, the magnetic contact 14 may be centrallylocated on the bottom wall 24 of the port 20. The first pin 16 and thesecond pin 18 may be pogo pins and/or may articulate up and down. Inother example embodiments, the first pin 16 and the second pin 18 may bemagnets and the contact 14 may be a pogo pin. For example, the first pin16 and the second pin 18 may be spring biased upwardly, but articulatedownward when depressed. One pin 16, 18 may be located on each side ofthe magnetic contact 14 and/or peripherally on the bottom wall 24. Themagnetic contact 14 is electrically connected to the microprocessor 90,and magnetically attracts a magnetic contact on an e-vaping device so asto form a first electrical connection therewith and align a tip end ofthe e-vaping device within the port 20 for charging. The magneticcontact 14 can be formed of magnetic stainless steel or any othersuitable material that provides good conduction and is magnetic.

In at least one example embodiment, the first pin 16 and the second pin18 are electrically connected to the microprocessor 90 (not shown). Forexample, wires may electrically connect the first pin 16 and the secondpin 18 to the microprocessor 90.

One of the first pin 16 and the second pin 18 is configured to form asecond electrical connection with an e-vaping device. The other one ofthe first pin 16 and the second pin 18 is configured to indicate to themicroprocessor 90 that an e-vaping device has been inserted in the port20 for charging so as to initiate a charging cycle.

Upon insertion of an e-vaping device in the port 20, the first pin 16and the second pin 18 are depressed, and the magnetic contact 14 and theport 20 align and secure the e-vaping device in the port 20.

As shown in FIG. 4, in at least one example embodiment, an e-vapingdevice 30 includes a tip end 34 that can be inserted in the port 20 ofthe charger assembly 10.

The e-vaping device 30 may include a replaceable cartridge (or firstsection) 70 and a reusable battery section (or second section) 72, whichmay be coupled together at a threaded connector 205. It should beappreciated that the connector 205 may be any type of connector, such asa snug-fit, detent, clamp, bayonet, and/or clasp. Upon completing theconnection between the first section 70 and the second section 72, thebattery 1 may be electrically connectable with the heater of the firstsection 70 upon actuation of the sensor.

In some example embodiments, the first section 70 may include areservoir configured to contain a pre-vapor formulation and a heaterthat may vaporize the pre-vapor formulation, which may be drawn from thereservoir by a wick. The first section 70 may include an outer housing38 extending in a longitudinal direction and an inner tube (or chimney)coaxially positioned within the outer housing 38 as described in U.S.Patent Application Publication No. 2013/0192623 to Tucker et al. filedJan. 31, 2013, the entire content of which is incorporated herein byreference thereto.

As shown in FIG. 4, a mouth-end insert 8 can be positioned at amouth-end 32 of the first section 70. The mouth-end insert 8 includes atleast two outlets, which may be located off-axis from the longitudinalaxis of the e-vaping device 30. The outlets may be angled outwardly inrelation to the longitudinal axis of the e-vaping device 30. The outletsmay be substantially uniformly distributed about the perimeter of themouth-end insert 8 so as to substantially uniformly distribute vapor asthe vapor exits the e-vaping device 30.

In some example embodiments, the outer housing 38 extends along a lengthof the e-vaping device 30. The outer housing 38 can have a generallycylindrical cross-section and a diameter of the outer housing 38 can besubstantially the same along the length of the e-vaping device 30.

In some example embodiments, the outer housing 38 along one or more ofthe first section 70 and the second section 72 can have a triangular orpolygonal cross-section and dimensions of the outer housing 38 can varyalong the length of the e-vaping device 30.

The outer housing 38 can be formed of one or more of plastic or metal.If the outer housing 38 is formed of plastic, the plastic can include asputtered metal coating. Moreover, indicia can be printed at one or morelocations along the length of the outer housing 38.

In at least one example embodiment, the second section 72 may include asensor (not shown), a battery 1, and a microprocessor 96. Themicroprocessor 96 may be configured to initiate heating cycles.

In some example embodiments, the tip end 34 of the e-vaping device 30may be angled and the tip end 34 can have a generally triangularcross-section. A base of the triangular cross-section can be at a pointof the angled tip end 34.

In at least one example embodiment, the second section 72, shown inFIGS. 6 and 7, includes the power supply 1. The power supply 1 mayinclude a battery. The battery may be a Lithium-ion battery or one ofits variants, for example a Lithium-ion polymer battery. Alternatively,the power supply 1 may be a nickel-metal hydride battery, a nickelcadmium battery, a lithium-manganese battery, a lithium-cobalt batteryor a fuel cell. The e-vaping device 30 may be usable by an adult vaperuntil the energy in the power supply 1 is depleted or in the case oflithium polymer battery, a minimum voltage cut-off level is achieved.

The power supply 1 may be rechargeable and may include circuitryconfigured to allow the battery to be chargeable by the charger assembly10. The charger assembly may include a rechargeable power sourceconfigured to charge a battery of the e-vaping device.

In at least one example embodiment, the e-vaping device 30 may includean indicator 85 and a heater activation light 48 configured to glow whenthe heater is activated. The indicator 85 can be substantiallytranslucent, such that the heater activation light 48 can be seenthrough the end cap if desired. For example, the indicator 85 and theactivation light 48 may include at least one LED and at least one lightpipe on a lateral surface near the tip end 34 of the e-vaping device 30.

The heater activation light 48 may include an LED and may extend along aside of the outer housing 38. Moreover, the heater activation light 48may be arranged to be visible to an adult vaper during vaping. Inaddition, the heater activation light 48 may be utilized for e-vapingsystem diagnostics or to indicate that recharging is in progress. Theheater activation light 48 may also be configured such that the adultvaper may activate and/or deactivate the heater activation light 48 forprivacy.

In at least one example embodiment, as shown in FIGS. 5-6, the e-vapingdevice 30 may include a first electrical contact 40 located at a centralportion of the tip end 34 of the e-vaping device and a second electricalcontact 36 extending around at least a portion of an outer perimeter ofthe tip end 34 of the e-vaping device. An insulating insert 42 may bepositioned between the first electrical contact 40 and the secondelectrical contact 36. The first electrical contact 40 and the secondelectrical contact 36 may be connected to the battery 1.

In at least one example embodiment, the first electrical contact 40 isgenerally triangular in shape and formed of a magnetic material, such asmagnetic stainless steel. Other suitable conductive and magneticmaterials may also be used to form the first electrical contact 40 ifdesired. The stainless steel may be silver plated. In at least oneexample embodiment, the first electrical contact 40 may be coloredand/or textured. For example, the first electrical contact 40 may beformed of a mesh material so as to allow air flow into the device, ifdesired.

In an example embodiment, the second electrical contact 36 is formed ofa conductive material, such as stainless steel. The stainless steel maybe silver plated.

Because the first electrical contact 40 and the second electricalcontact 36 are at the tip end 34 of the e-vaping device 30, the e-vapingdevice 30 need not be dismantled in order to initiate charging of thepower supply 1.

Instead, the tip end 34 of the e-vaping device can be inserted in theport 20 of the charger assembly 10 when fully assembled. Once inserted,the magnetic contact 14 of the charger assembly 10 will be magneticallyattracted to the first electrical contact 40 of the e-vaping device 30,such that the first electrical contact 40 and the magnetic contact 14are brought into contact, an electrical connection is formed, and thee-vaping device 30 is aligned and secured within the port 20 withoutbeing locked into place. One of the first pin 16 and the second pin 18will then form an electrical connection with the second electricalcontact 36 of the e-vaping device 30. A remaining one of the first pin16 and the second pin 18 will be depressed upon insertion of the tip end34 into the port 20 and will indicate to the microprocessor 90 of thecharger assembly 10 that the e-vaping device has formed an electricalconnection with the charger assembly 10 due to sensing of a resistanceor a lack thereof and/or a change in resistance. The microprocessor 90then initiates a charging cycle.

In at least one example embodiment, the charger assembly 10 isconfigured to validate that the e-vaping device 30 is compatible withthe charger assembly 10. At least one of the first pin 16 and the secondpin 18 may transmit information between the charger assembly 10 and thee-vaping device 30 regarding battery health, software versions and/orupdates, and the like.

In an example embodiment, the e-vaping device 30 may be about 80 mm toabout 110 mm long and about 7 mm to about 8 mm in diameter. For example,in one example embodiment, the e-vaping device may be about 84 mm longand may have a diameter of about 7.8 mm.

While a number of example embodiments have been disclosed herein, itshould be understood that other variations may be possible. Suchvariations are not to be regarded as a departure from the spirit andscope of the present disclosure, and all such modifications as would beobvious to one skilled in the art are intended to be included within thescope of the following claims.

We claim:
 1. A charger assembly configured to charge an electronicvaping device, the charger assembly comprising: a base including, ahousing defining a port, the port configured to receive a tip end of theelectronic vaping device, the port including, a magnetic electricalcontact positioned at a bottom of the port to form a first connectionwith the tip end of the electronic vaping device, and a first pinpositioned at the bottom of the port to form a second connection withthe tip end of the electronic vaping device; and a microprocessorelectrically connected to the magnetic electrical contact and the firstpin.
 2. The charger assembly of claim 1, further comprising, a secondpin positioned at the bottom of the port.
 3. The charger assembly ofclaim 2, wherein the magnetic electrical contact is centrally positionedat the bottom of the port and the first pin and the second pin areperipherally positioned with respect to the magnetic electrical contact.4. The charger assembly of claim 1, wherein the port is generallytriangular in cross-section and the base of the charger assembly isgenerally triangular in cross-section.
 5. The charger assembly of claim4, wherein the triangular cross-section of the port has a central portvertex and the triangular cross-section of the base has a central basevertex.
 6. The charger assembly of claim 5, wherein a bottom wall of theport is angled with respect to a longitudinal axis of the base and thecentral port vertex is at a highest point of the port.
 7. The chargerassembly of claim 5, wherein the central port vertex is opposite fromthe central base vertex.
 8. The charger assembly of claim 7, wherein abottom wall of the port is angled with respect to a longitudinal axis ofthe base and the central port vertex is at a highest point of the port.9. The charger assembly of claim 1, wherein the base further comprises:a rechargeable power source configured to charge a battery of theelectronic vaping device.
 10. The charger assembly of claim 1, whereinthe base further comprises: a plastic outer shell.
 11. The chargerassembly of claim 1, wherein the base further comprises: a connectionport configured to connect the base with an external power supply.
 12. Acharging system, the charging system comprising: an electronic vapingdevice; and a charger assembly configured to charge the electronicvaping device, the charger assembly including, a base including ahousing defining a port, the port configured to receive a tip end of theelectronic vaping device, the port including, a magnetic electricalcontact positioned at a bottom of the port, the port configured to forma first electrical connection with the tip end of the electronic vapingdevice, and a first pin positioned at the bottom of the port, the firstpin configured to form a second electrical connection with the tip endof the electronic vaping device; and a microprocessor electricallyconnected to the magnetic electrical contact and the first pin.
 13. Thecharging system of claim 12, further comprising, a second pin positionedat the bottom of the port.
 14. The charger assembly of claim 13, whereinthe magnetic electrical contact is centrally positioned at the bottom ofthe port and the first pin and the second pin are peripherallypositioned with respect to the magnetic electrical contact.
 15. Thecharging system of claim 13, wherein the first pin and the second pinare configured to be depressed upon insertion of the electronic vapingdevice in the port.
 16. The charging system of claim 12, wherein theelectronic vaping device includes a first electrical contact and asecond electrical contact.
 17. The charging system of claim 16, whereinthe first electrical contact is centrally located on the tip end of theelectronic vaping device.
 18. The charging system of claim 17, whereinthe first electrical contact is magnetic and the first electricalcontact is configured to electrically connect with the magneticelectrical contact.
 19. The charging system of claim 16, wherein thesecond electrical contact is located on an outer edge of the tip end.20. The charging system of claim 19, wherein the second electricalcontact extends substantially about one of a circumference and aperimeter of the outer edge of the tip end.
 21. The charging system ofclaim 12, wherein the tip end has a generally triangular cross-section.22. The charging system of claim 21, wherein the port is generallytriangular in cross-section and the base of the charger assembly isgenerally triangular in cross-section.
 23. The charging system of claim22, wherein the triangular cross-section of the port has a central portvertex and the triangular cross-section of the base has a central basevertex.
 24. The charging system of claim 23, wherein the central portvertex is opposite from the central base vertex.
 25. The charging systemof claim 23, wherein the port is angled with respect to a longitudinalaxis of the base and the central port vertex is at a highest point ofthe port.
 26. The charging system of claim 12, wherein the base furthercomprises: a rechargeable power source configured to charge a battery ofthe electronic vaping device.
 27. A charger assembly comprising: a baseplate; a housing mated with the base plate, the housing having a topwall and at least one side wall, the housing having a generallytriangular cross-section, and the housing and the base plate defining achamber; a port defined by a bottom wall and at least one port sidewall, the port extending from the top wall of the housing into thechamber, the bottom wall extending into the chamber at an angle; amagnetic electrical contact positioned on the bottom wall of the port; afirst pin positioned on the bottom wall of the port; and amicroprocessor electrically connected to the magnetic electrical contactand the first pin.
 28. The charger assembly of claim 27, wherein thehousing is generally frusto-pyramidal in shape.
 29. The charger assemblyof claim 27, further comprising: a second pin electrically connected tothe microprocessor, the second pin positioned on the bottom wall of theport.
 30. The charger assembly of claim 29, wherein the magneticelectrical contact is centrally positioned on the bottom wall of theport and the first pin and the second pin are positioned peripherally inrelation to the magnetic electrical contact.